Space occupying problem during movement

[lujiewei521]

I'm a novice, but I want to know why when I move an element, moving to the left of the component will put it in the front, moving to the right will put it in the back, shouldn't it be a question of element position?

https://user-images.githubusercontent.com/54343412/195048504-c394e55e-180c-41e3-a70a-74e13a29799e.mov

[lujiewei521]

我的代码 和 示例是一样的。